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Sunday, 21 June 2026
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Physics Past Questions and Answers

Topic: using the theory to explain:

Jamb Physics Questions - using the theory to explain:

Question 51:
A sealed flask contains 600cm3 of air at 27°C and is heated to 35°C at constant pressure. The new volume is?
  • A 508 cm<sup style='font-size: smaller;'>3</sup>
  • B 516 cm<sup style='font-size: smaller;'>3</sup>
  • C 608 cm<sup style='font-size: smaller;'>3</sup>
  • D 616 cm<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation
Question 52:
If the pressure of the vapour on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?
  • A Room temperature
  • B Boiling point
  • C Freezing point
  • D Standard temperature
View Answer & Explanation
Question 53:
The pressure of two moles of an ideal gas at a temperature of 27oC and volume 10-2m3 is
[R = 8.313 J mol-1K-1]
  • A 4.99 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • B 9.80 x 10<sup style='font-size: smaller;'>3</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • C 4.98 x 10<sup style='font-size: smaller;'>3</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • D 9.80 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 54:
The pressure of one mole of an ideal gas of volume 10-2 m3 at a temperature of 27°c is
[molar gas constant = 8.3 J mol-1 k-1]
  • A 2.49 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • B 2.24 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • C 2.49 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
  • D 2.24 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 55:
The pressure of one mole of an ideal gas of volume 10-2 m3 at a temperature of 27°c is
[molar gas constant = 8.3 J mol-1 k-1]
  • A 2.49 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • B 2.24 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • C 2.49 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
  • D 2.24 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation