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1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following reactions shows work of compression?

A
$$N{H_{{3{(g)}}}} + HC{l_{(g)}} \to N{H_4}C{l_{(s)}}$$
B
$${C_2}{H_{6(g)}} \to 2{C_{(s)}} + 3{H_{2(g)}}$$
C
$$2S{O_{3(g)}} \to 2S{O_{2(g)}} + {O_{2(g)}}$$
D
$$2{H_2}{O_{2(l)}} \to 2{H_2}{O_{(l)}} + {O_{2(g)}}$$
2
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate change in enthalpy when 39 g acetylene is completely burnt with oxygen and enthalpy of combustion of acetylene is $$-$$1300 kJ/mol.

(At. mass C = 12, H = 1)

A
$$-$$975 kJ
B
$$-$$650 kJ
C
$$-$$1950 kJ
D
$$-$$1600 kJ
3
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

An ideal gas on isothermal reversible compression from 10L to 5L performs 1730J of work at 300 K. Calculate number of moles of gas involved in compression? (R = 8.314 J K$$^{-1}$$ mol$$^{-1}$$)

A
2.5
B
2
C
1
D
3
4
MHT CET 2020 16th October Morning Shift
MCQ (Single Correct Answer)
+1
-0

A sample of gas absorbs $$4000 \mathrm{~kJ}$$ of heat and surrounding does $$2000 \mathrm{~J}$$ of work on sample. What is the value of $$\Delta U$$ ?

A
4002 kJ
B
6000 kJ
C
4000 kJ
D
2000 kJ
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