Download App

PHYSICS CH7 Heat — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9SciencePHYSICS CH7 Heat2 Marks
Question
Define thermal capacity.
✓

Answer

  • Heat capacity or thermal capacity is defined as the amount of heat energy required to raise the temperature of a body by 1°C. It is denoted by ‘C’.
  • C = Q/t, where C’ is the heat capacity, ‘Q’ is the quantity of heat required and ‘f’ is rise in temperature.
  • SI unit of heat capacity is J/K. It is also expressed in cal/°C, kcal/°C or J/°C.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Questions]" from PHYSICS CH7 Heat→PHYSICS CH7 Heat — all question types→Science STD 9 question papers→Tamilnadu Board STD 9 question papers→Tamilnadu Board question paper generator→

Similar questions

Calculate the current in a wire if a charge of 1500 coulomb flows through it in 5 minutes.
→
What is specific heat capacity?
→
Ionic compounds are crystalline solids at room temperature.
→
A person is listening to a tone of $400 Hz$ from a distance of $500 m$ from the source of sound. What is the time interval between successive compressions from source?
→
Give two examples of the transparent medium that are denser than air.
→
\text { Acetic acid }\left( CH _3 COOH \right) \text { is a mono basic acid. }
→
Define aquaregia.
→
Group 1 (except hydrogen) elements are called alkali metals.
→
Differentiate hydrate and anhydrous salts with examples.
→
How was it shown that atom has empty space?
→