SHC

Question 1

What is specific heat capacity

Answer 1

The energy required to raise the temperature of a substance by 1 degree Celsius for each 1kg

Question 2

What’s the SHC of water

Answer 2

4200J/Kg degrees C

Question 3

Formula to find the energy needed
(And units and simplified version)

Answer 3

Energy needed = mass x SHC x temp. Change
🔺E = mc🔺(theta(actually temp change))
J, Kg, J/Kg degrees C, degrees C

Question 4

What does a triangle represent in a formula

Answer 4

Change in

Question 5

If the energy and mass remain the same, what happens to the SHC if the temp change is greater

Answer 5

It’s lower

Question 6

What is internal energy

Answer 6

The sum of the kinetic and potential energies of all the particles in a substance.

Kinetic - temp
Potential energies - state in

Question 7

5 steps to use the gradient to find the SHC on a graph

Answer 7

1. Find two far away points on your line (LINE NOT THE POINTS)
2. Make into a right angled triangle
3. Find the change in y and change in x using the SCALE
4. Gradient = change in y/change in x or
   y2-y1/x2-x1
5. Gradient = 1 / mc ~> c= 1 / m x gradient