Thermodynamics

Question

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 1. A strip of magnesium of mass 15g is dropped into an open beaker of dilute hydrochloric acid. Calculate the work done by the system as a result of reaction. The atmosphere pressure is 1atm and temperature is 25&deg;C. Also, calculate the work done if the reaction is carried out in closed beaker.

Leah hanford · Accepted Answer

Mg + 2HCl-----> MgCl2 + H2n=(15 g magnesium)*(1mol/24.305g)*(1mol H2/1mol Mg)=0.6171569636 mol H2R=0.082054 atmL/molKT=25+273.15=298.15KP= 1 atmPV=nRTV=nRT/P=(0.6171569636 mol )(0.082054 atmL/molK)(298.15K)/1 atm=15.09837488 LW=-PV=- (1 atm)(15.09837488 L)= -15.09837488 atmL= 1.529918327 kJ

Thermal Physics> Thermodynamics...

1. A strip of magnesium of mass 15g is dropped into an open beaker of dilute hydrochloric acid. Calculate the work done by the system as a result of reaction. The atmosphere pressure is 1atm and temperature is 25°C. Also, calculate the work done if the reaction is carried out in closed beaker.

Kewal Dubey , 13 Years ago

Leah hanford

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Thermal Physics> Thermodynamics...

1. A strip of magnesium of mass 15g is dropped into an open beaker of dilute hydrochloric acid. Calculate the work done by the system as a result of reaction. The atmosphere pressure is 1atm and temperature is 25°C. Also, calculate the work done if the reaction is carried out in closed beaker.

Kewal Dubey , 13 Years ago

Leah hanford

LIVE ONLINE CLASSES

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