1. Tardigrade
  2. Question
  3. Chemistry
  4. Consider the reaction at 300 K C 6 H 6(ℓ)+(15/2) O 2( g ) arrow 6 CO 2( g )+3 H 2 O (ℓ) Δ H =-3271 kJ What is Δ U for the combustion of 1.5 mole of benzene at 27° C ?

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Q. Consider the reaction at $300 K$
$C _{6} H _{6}(\ell)+\frac{15}{2} O _{2}( g ) \rightarrow 6 CO _{2}( g )+3 H _{2} O (\ell) \Delta H =-3271 \,kJ$
What is $\Delta U$ for the combustion of $1.5$ mole of benzene at $27^{\circ} C$ ?

Solution:

Correct answer is (b) -4900.88 kJ