Temp and Specific Heat Capacity

Question 1

How do you convert temperature between Celsius and Kelvin?

Answer 1

Tk = Tc + 273

Question 2

What is Absolute Zero and the Kelvin Scale?

Answer 2

Lord Kelvin found that at -273°C (0 K), particle motion stops, defining absolute zero. The Kelvin scale starts from this point and is used in science and thermodynamics to avoid negative temperatures.

K

Question 3

How did Celsius develop?

Answer 3

Scale developed around the boiling (100 ̊C) and freezing point (0 ̊C) of water at standard atmospheric pressure.

degree C

Question 4

What causes a change in temperature?

Answer 4

A change in temperature occurs when energy is added or removed from a system, affecting the kinetic energy of particles (without a phase change). Heat is measured in joules (J) or calories (cal), where 1 cal = 4.186 J.

Question 5

What is Specific Heat Capacity and Proportionality?

Answer 5

Specific heat capacity is the amount of energy required to raise 1 kg of a substance by 1°C. The heat energy needed (𝑄) to change temperature is proportional to mass (𝑚), meaning more mass requires more heat for the same temperature change. Q=MCT

Question 6

How do you graph variables?

(ASK TEACHER ABOUT PPT E.G. AND LINE OF BEST FIT AND HOW WE REFER TO GRADIENT).

Answer 6

Independent Variable: The variable you control or change (plotted on the x-axis).

Dependent Variable: The variable that responds or is measured (plotted on the y-axis).

Title/s

Line of best fit.

gradient - y2-y1/x2-x1