Could dr. guliaev be lifted 20 cm above the floor by the thermal energy of the floor overcoming the gravitational force? assume dr. guliaev' weight is 185 lb, the temperature of the room is 298k and the temperature of the floor doesn't change in this process a. would this process violate the 1 law of thermodynamics? a. b. calculate the probability of this event? chem 300 (consider entropy and w. energy is need for the lift is e-mgh) 150 as 0n calolated the volume of the gas ifit initaly occuied he volume of dm at 1.00 atm and 250 k

a. hope i'm right

explanation:

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol