Thermochemistry Intro

Day 1 of Thermochemistry

I can convert calories to Joules.

I can explain the difference between heat and temperature.

Multiple Choice

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat
• internal energy
• none of these

Multiple Choice

A(n) _____________ is a device for measuring temperature.

• thermometer
• barometer
• anemometer
• psychrometer 

Multiple Choice

Heat flows from _______ to ______ objects

• cooler to warmer
• warmer to warmer
• warmer to cooler
• cooler to cooler

Multiple Choice

A slower particle has a lower energy than an identical, faster particle.

• True
• False

Multiple Choice

Energy can not be created or destroyed, it can only be transferred refers to the....

• law of conservation of energy
• law of conservation of mass
• life facts
• law of conservation of chemistry

Multiple Choice

When thermal energy is added to a substance, the substance's particles move:

• More rapidly at an increased diestance from each other.
• More rapidly with less distance between each other.
• More slowly with a greater distance between each other.
• More slowly with a reduced distance between each other.

Multiple Choice

In an endothermic reaction the system is releasing energy.

• True

• False

Multiple Choice

In an exothermic process the surroundings loose heat.

• True

• False

Multiple Choice

During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______.

• Warm

• Cold

• Bubbly

• Damp

Multiple Choice

Calorie - with a capital "C" - is an energy measurement for ________________________.

• food

• energy

• insulators

• conductors

Multiple Choice

1 calorie is also equal to ________________________.

• 4.18 joules

• 1 joule

• 2 joules

• 3 conductors

Multiple Choice

The amount of energy needed to raise the temperature of 1 gram of water by 1 ^oC is ____________________________.

• 1 calorie

• 1 joule

• 2 joules

• 1 kilogram