Q56. Consider the following single step reaction in gas phase at constant temperature. $2 \mathrm {~A} _ { ( \mathrm { g } ) } + \mathrm { B } _ { ( \mathrm { g } ) } \rightarrow \mathrm { C } _ { ( \mathrm { g } ) }$ The initial rate of the reaction is recorded as $r _ { 1 }$ when the reaction starts with 1.5 atm pressure of $A$ and 0.7 atm pressure of B . After some time, the rate $\mathrm { r } _ { 2 }$ is recorded when the pressure of C becomes 0.5 atm . The ratio $\mathrm { r } _ { 1 } : \mathrm { r } _ { 2 }$ is $\_\_\_\_$ $\times 10 ^ { - 1 }$. (Nearest integer)
Q56. Consider the following single step reaction in gas phase at constant temperature. $2 \mathrm {~A} _ { ( \mathrm { g } ) } + \mathrm { B } _ { ( \mathrm { g } ) } \rightarrow \mathrm { C } _ { ( \mathrm { g } ) }$ The initial rate of the reaction is recorded as $r _ { 1 }$ when the reaction starts with 1.5 atm pressure of $A$ and 0.7 atm pressure of B . After some time, the rate $\mathrm { r } _ { 2 }$ is recorded when the pressure of C becomes 0.5 atm . The ratio $\mathrm { r } _ { 1 } : \mathrm { r } _ { 2 }$ is $\_\_\_\_$ $\times 10 ^ { - 1 }$. (Nearest integer)