What will be the partial pressure of He and O₂, if 200 mL of He at 0.66 atm and 400 mL
What will be the partial pressure of He and O₂, if 200 mL of He at 0.66 atm and 400 mL of O₂ at 0.52 atm. pressure are mixed in 400 mL vessel at 20⁰C […]
States of Matter Gases and Liquids
Which of the following is a representation of Gay-Lussac’s law
Which of the following is a representation of Gay-Lussac’s law
Options
(a) P₁V₁ = P₂V₂ (b) P₁T₁ = P₂T₂ (c) V₁T₂ = V₂T₁ (d) P₁T₂ = P₂T₁
Correct Answer:
P₁T₂ = P₂T₁
Explanation: […]
A vessel contains a mixture of different types of gases.Which of the following
A vessel contains a mixture of different types of gases.Which of the following statement is correct
Options
(a) On the average the heavier molecules have higher translation energy (b) The average speed of […]
If 0.44g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm of Hg and 273⁰C
If 0.44g of a colourless oxide of nitrogen occupies 224 ml at 1520 mm of Hg and 273⁰C, then the compound is
Options
(a) N₂O (b) NO₂ (c) NO₄ (d) N₂O₂
Correct Answer: […]
The volume of 2.8g of carbon monoxide at 27⁰C and 0.821 atm pressure is
The volume of 2.8g of carbon monoxide at 27⁰C and 0.821 atm pressure is (R = 0.0821 lit. atm mol⁻¹ K⁻¹)
Options
(a) 0.3 litre (b) 3 litre (c) 1.5 litre (d) 30 […]
At what temperature, the rms velocity of gas shown at 50⁰C will be doubled
At what temperature, the rms velocity of gas shown at 50⁰C will be doubled
Options
(a) 626 K (b) 1019 K (c) 200⁰C (d) 1019⁰C
Correct Answer:
1019⁰C
Explanation:
C(rms) = √(3RT / […]
Different gases at the same temperature must have
Different gases at the same temperature must have
Options
(a) same volume (b) same pressure (c) same average KE (d) same van der Waals constant
Correct Answer:
same average KE
Explanation:
No explanation […]
Surface tension vanishes at
Surface tension vanishes at
Options
(a) boiling point (b) critical point (c) condensation point (d) triple point
Correct Answer:
critical point
Explanation:
At critical point, the meniscus between the liquid and the vapour […]
How many calories are required to heat 40 gram of argon from 40⁰C to 100⁰C
How many calories are required to heat 40 gram of argon from 40⁰C to 100⁰C at constant volume? ( R = 2 cal/mol.K)
Options
(a) 120 (b) 2400 (c) 1200 (d) 180
Correct […]
6.4 g SO₂ at 0⁰C and 0.99 atm pressure occupies a volume of 2.24 L
6.4 g SO₂ at 0⁰C and 0.99 atm pressure occupies a volume of 2.24 L. Predict which of the following is correct
Options
(a) the gas is ideal (b) the gas is real […]