GATE XE 2022 Paper 1 — page 16

Questions 46–48 of 175. Imported answers require review unless explicitly marked reviewed.

In an ideal rubber, the primary factor responsible for elasticity up to small strains is

Your answerChoose one option.

Change in both enthalpy and entropy

Change in enthalpy, but no change in the entropy

No change in enthalpy, but change in the entropy

Neither a change in enthalpy, nor a change in the entropy

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Which one of the following statements is true for an intrinsic semiconductor?

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Electrical conductivity increases with increasing temperature and pressure

Electrical conductivity increases with increasing temperature and decreasing pressure

Electrical conductivity increases with decreasing temperature and increasing pressure

Electrical conductivity increases with decreasing temperature and pressure

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A differential scanning calorimetry (DSC) experiment tracks the heat flow into or out of a system as a function of temperature. If the experiments given in the options below are performed at 1 atmospheric pressure, then in which case will the DSC thermogram exhibit a spike, either upward or downward?

Your answerChoose one option.

Heat 10 mg of pure Cu from 323 K to 673 K

Cooling pure water from 323 K to 278 K

Heat pure ice from 263 K to 284 K

Cooling a Pb-Sn alloy at the eutectic composition from 323 K to 273 K

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2022 · Paper 1

Question 46

Question 47

Question 48