X(g) + 3Y(g) ---- 2z(g) H = +ve. if the reaction above takes place at room temperature, the G will be

Assessment: JAMB UTME - Chemistry - 2017 Subject: Chemistry

Question 1 Report

X(g) + 3Y(g) ---- 2z(g) H = +ve. if the reaction above takes place at room temperature, the G will be

Answer Details

Enthalpy Change [?H] Entropy Change [?S] Gibbs free Energy[?G] Positive Positive depends on T, may be + or - Negative Positive always negative Negative Negative depends on T, may be + or - Positive Negative always positive

?G= ?H ? T?S.
To determine whether ?G will be positive or negative, the value of ?H(change in enthalpy) and ?S (change in entropy) must be given. Likewise the temperature.

Read lesson note on Kinetic Theory Of Matter And Gas Laws (JAMB)
Read lesson note on Chemical Kinetics And Equilibrium Systems (Ghana Only) (WAEC)
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