jee_main_2026_21_jan_morning - Thermal Properties of Matter Topics

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QUESTION #27 Calorimetry
A gas based geyser heats water flowing at the rate of 5.0 litres per minute from 27^circtextC to 87^circtextC. The rate of consumption of the gas is ____ g/s. (Take heat of combustion of gas = 5.0 times 10^4 J/g, specific heat capacity of water = 4200text J/kg.^circtextC)
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QUESTION #40 Thermal Expansion
An aluminium and steel rods having same lengths and cross-sections are joined to make total length of 120 cm at 30°C. The coefficient of linear expansion of aluminium and steel are 24 times 10^-6/^circmathrmC and 1.2 times 10^-5/^circmathrmC, respectively. The length of this composite rod when its temperature is raised to 100°C, is ____ cm.
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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