Investigation 8 - Enriched - Thermo Test Review

Front

During a phase change, the temperature of a substance __________.

Back

always stays the same

Front

What is the quantity of heat needed to change the temperature of 1 g of a substance by 1°C?

Back

specific heat

Front

How do you calculate the Enthalpy of a reaction?

Back

ΔH = ΣΔHproducts - ΔHreactants

Front

How would you classify the reaction: 2Na + Cl₂ → 2NaCl + 25kJ energy?

Back

Exothermic

Front

What is the energy transferred between samples of matter because of a difference in their temperature?

Back

Heat

Front

Define specific heat.

Back

The amount of heat required to raise the temperature of 1 gram of a substance by 1°C.

Front

What is the formula for calculating heat transfer?

Back

q = m·C·ΔT

Front

What does ΔH represent in thermodynamics?

Back

Change in enthalpy of a system.

Front

What is an exothermic reaction?

Back

A reaction that releases energy in the form of heat.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings.