Engineer & Medical

Exam 2016 Chemistry question bank (Chemistry)

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Q1.

$A$ wire of length $2$ units is cut into two parts which are bent respectively to form a square of side $= x$ units and a circle of radius $= r$ units. If the sum of the areas of the square and the circle so formed is minimum,then:

(A)
$x = 2r$
(B)
$2x = r$
(C)
$2x = (\pi + 4)r$
(D)
$(4 - \pi)x = \pi r$
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Q2.

$n$ moles of an ideal gas undergo a process $A \rightarrow B$ as shown in the figure. The maximum temperature of the gas during the process will be

figure

(A)
$\frac{9P_0V_0}{2nR}$
(B)
$\frac{9P_0V_0}{nR}$
(C)
$\frac{9P_0V_0}{4nR}$
(D)
$\frac{3P_0V_0}{2nR}$
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