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B.Tech Chemical Thermochemistry — practice questions

Explore 30 free Thermochemistry questions in B.Tech Chemical Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Thermochemistry questions and exercises with answers

Showing questions 1–30 of 30.

A textbook defines the capacity to supply heat or do work. That capacity is:Read the answer and worked solution →A hot spoon rests in cold water. Thermal energy moving between them is called:Read the answer and worked solution →A spoon sits in water long enough. Heat flow between them stops once:Read the answer and worked solution →A cutting torch burns acetylene and pours out heat. That process is:Read the answer and worked solution →A cold pack goes chilly as its contents mix. That process is:Read the answer and worked solution →The salt inside a common cold pack is:Read the answer and worked solution →An engineer records heat, work and energy in one unit. That SI unit is the:Read the answer and worked solution →Heat capacity depends on the amount of the substance and on its:Read the answer and worked solution →Specific heat capacity is a property that depends only on the:Read the answer and worked solution →Two iron pans, one large and one small, sit on a stove. The larger pan has larger:Read the answer and worked solution →Two iron pans differ in size but not in metal. Their specific heat values are:Read the answer and worked solution →Heat capacity worked out per mole of substance is called the:Read the answer and worked solution →A device measures the heat given out or taken in by a reaction. It is a:Read the answer and worked solution →Students build a rough calorimeter for class using two:Read the answer and worked solution →A coffee cup calorimeter lets heat leak to the room. Its results are therefore:Read the answer and worked solution →A sturdy steel vessel holds the reaction in one kind of calorimeter. It is called a:Read the answer and worked solution →A cup calorimeter is open to the room, so it works at constant:Read the answer and worked solution →All the energy of every kind stored inside a substance is called its:Read the answer and worked solution →The internal energy of a system can be changed by work and by:Read the answer and worked solution →A quantity whose value depends only on the present state is called a:Read the answer and worked solution →Two climbers take different routes up Kilimanjaro. What matches at the top is the:Read the answer and worked solution →Chemists track heat at constant pressure using a property called:Read the answer and worked solution →Catch the heat termsRead the answer and worked solution →Pop the heat giversRead the answer and worked solution →Run the heat gatesRead the answer and worked solution →Slice the heat wordsRead the answer and worked solution →Heat out or heat inRead the answer and worked solution →Sort the heat ideasRead the answer and worked solution →Type the numberRead the answer and worked solution →Thermochemistry bingoRead the answer and worked solution →

Worked practice questions

A textbook defines the capacity to supply heat or do work. That capacity is:

  1. Energy
  2. Entropy
  3. Enzyme
  4. Estuary
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Correct answer: A. Energy

1. Both heating and working need a supply. 2. One quantity covers that ability. 3. That quantity is energy. _Source: OpenStax Chemistry 2e, Chapter 5, Thermochemistry._

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A hot spoon rests in cold water. Thermal energy moving between them is called:

  1. Hull
  2. Heat
  3. Haze
  4. Hail
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Correct answer: B. Heat

1. The two bodies are at different temperatures. 2. Thermal energy crosses from hot to cold. 3. That transfer is heat. _Source: OpenStax Chemistry 2e, Chapter 5, Thermochemistry._

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A spoon sits in water long enough. Heat flow between them stops once:

  1. Temps match
  2. Timers stop
  3. Tables tilt
  4. Tempers cool
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Correct answer: A. Temps match

1. A difference in temperature drives the flow. 2. Once that difference is gone the drive is gone. 3. So flow stops when temperatures match. _Source: OpenStax Chemistry 2e, Chapter 5, Thermochemistry._

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