Energy from fuels Flashcards
1
Q
What is an endothermic reaction
A
a chemical reaction in which the reactants absorb heat energy from their surroundings to form the products.
2
Q
What is an exothermic reaction
A
A chemical reaction in which the reaction process releases heat energy to its surroundings.
3
Q
When does a combustion reaction occur
A
When a substance reacts with oxygen and energy is released.
4
Q
What is the specific heat capacity of a substance
A
It is the amount of energy required to heat that substance by 1 degree Celsius.
5
Q
what is the equation for specific heat capacity
A
Eh=cmx(change in temp)
6
Q
Change the subject to c - from the specific heat capacity (Eh=cm x change in temp
A
c=Eh/(m x change in temp)
7
Q
what is specific heat capacity measured in
A
J/kg°C
