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Thermometry & Calorimetry formula sheet

Every formula in the Thermometry & Calorimetry chapter for JEE Main, with one line on when it applies. Topic 1 is open to everyone; sign in free to read all 26 and download the PDF.

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How we count: 7× asked means 7 past JEE Main questions in the PrepWiser bank needed that formula, and "last" is the latest year one appeared. ★ marks formulas asked 8 or more times.

Temperature scales and thermometers

Linear temperature scales
5× asked, last 2025
C100=F−32180=K−273.15100=X−XiceXsteam−Xice\frac C{100}=\frac{F-32}{180}=\frac{K-273.15}{100}=\frac{X-X_{\text{ice}}}{X_{\text{steam}}-X_{\text{ice}}}
Any linear scale or faulty thermometer. C and F agree at −40-40.
Temperature change
ΔF=1.8 ΔC,ΔK=ΔC\Delta F=1.8\,\Delta C,\qquad \Delta K=\Delta C
Changes have no offset; 32 and 273 belong only to readings.
Gas and resistance thermometers
2× asked, last 2024
TT0=PP0 (const. V),t100=Rt−R0R100−R0\frac T{T_0}=\frac P{P_0}\ (\text{const. }V),\qquad \frac t{100}=\frac{R_t-R_0}{R_{100}-R_0}
Gas: TT in kelvin. Platinum wire: Rt=R0(1+αt)R_t=R_0(1+\alpha t).

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Practise Thermometry & Calorimetry

23 more formulas in 5 topics

Thermal expansion of solids; Liquids, water and expansion errors; Specific heat and energy conversion; Latent heat and phase change; and Calorimetry: method of mixtures. Read the first part free. Sign in free with Google to read the rest and download the PDF.

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Thermal expansion of solids

  • Linear, area and volume expansion9×
  • Holes, cavities and rings3×
  • Ring and rod heated together
  • Density change2×
  • Rods joined end to end1×
  • Constant length difference1×
  • Bimetallic strip1×
  • Thermal stress1×

Liquids, water and expansion errors

  • Liquid in a vessel1×
  • Anomalous expansion of water2×
  • Pendulum clock
  • Metal scale error

Specific heat and energy conversion

  • Heat and specific heat6×
  • Varying specific heat
  • Molar specific heat; water equivalent1×
  • Mechanical energy into heat6×
  • Bullet that heats and melts

Latent heat and phase change

  • Latent heat8×
  • Heating curve4×

Calorimetry: method of mixtures

  • Principle of calorimetry3×
  • Mixing with ice: check first6×
  • Steam condensing
  • Specific heat by mixtures

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About 50 past JEE Main questions from this chapter, with instant answer checking and step-by-step solutions where available. Free, and you can start without signing up.

Practise Thermometry & Calorimetry

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Version 1, October 2026. Free to share for study, as it is. Please don't sell it or remove the PrepWiser name.

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