Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed to air?

(i) increase in pressure (ii) increase in temperature

(iii) decrease in pressure (iv) decrease in temperature

(a) (i) and (ii) (b) (i) and (ii) (c) (ii) and (iii) (d) (ii) and (iv)

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Solution

(c) (ii) and (iii)

Solid carbon dioxide can be changed into vapour or gaseous state by decreasing the pressure and increasing the temperature. Both the processes increase the inter-particle spaces in the solid carbon dioxide.

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Similar questions

Q. Which of the following factors are responsible for the change in state of solid carbon dioxide when kept exposed to air ?
(i) increase in pressure
(ii) increase in temperature
(iii) decrease in pressure
(iv) decrease in temperature

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (ii) and (iv)

Q. Match Column I with Column II and select the correct option from the codes given below

Column I	Column II
(a) Drying of clothes on a windy day	(i) Time taken for evaporation increases
(b) Liquefaction of gases	(ii) Decreasing pressure and increasing temperature
(c) Change in state of dry ice from solid to gas	(iii) Increasing pressure and decreasing temperature
(d) Less cooling effect of sweating in coastal areas	(iv) Rate of evaporation increases

Q. Consider the following anions:

When attached to

s_{p^{3}}

-hybridized carbon, their leaving group ability in nucleophilic substitution reaction decreases in the order:

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?

(a) (i), (ii), (iii) and (iv) (b) (i) ,(ii) and (iii)

What happens if the factors in column A are increased?

$\begin{matrix} A & B A) Cation size & I) Polarizability increases B) Cation charge & II) Polarizing power decrease C) Anion Charge & III) Polarizability increases D) Anion Size & IV) Polarizing power increases \end{matrix}$

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(c) (ii) and (iii) Solid carbon dioxide can be changed into vapour or gaseous state by decreasing the pressure and increasing the temperature. Both the processes increase the inter-particle spaces in the solid carbon dioxide.

(c) (ii) and (iii)

Solid carbon dioxide can be changed into vapour or gaseous state by decreasing the pressure and increasing the temperature. Both the processes increase the inter-particle spaces in the solid carbon dioxide.