Entropy As An Order-disorder Phenomenon Jamb Chemistry Past Questions
Question 1
N2O4(g)→ 2NO2(g)
In the endothermic reaction above, more products formed will be favored by
- A. A constant values
- B. an increase in pressure
- C. a decrease pressure
- D. a decrease volume
Question 2
The number of molecules of Carbon(iv)Oxide produced when 10.0g of CaCO\(_3\) is treated with 0.2dm\(^3\) of 1 Mole of HCL in the equation
CaCO\(_3\) + 2HCL ⇒ CaCl\(_2\) + H\(_2\) O + CO\(_2\) , is?
- A. 1.00 X 10\(^{23}\)
- B. 6.02 X 10\(^{23}\)
- C. 6.02 X 10\(^{22}\)
- D. 6.02 X 10\(^{24}\)
Question 3
32g of anhydrous copper(ii)tetraoxosulphate(vi) dissolved in 1dm\(^3\) of water generated 13.0kj of heat. The heat solution is?
- A. 26.0kj/mol
- B. 65.0kj/mol
- C. 130.0kj/mol
- D. 260.0kj/mol
Question 4
What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?
- A. 8.0g
- B. 16.0g
- C. 36.0g
- D. 72.0g
Question 5
When heat is absorbed during a chemical reaction, the reaction is said to be
- A. thermodynamic
- B. exothermic
- C. isothermal
- D. endothermic
