A 3Omega resistor as shown in the figure is dipped into a calorimeter containing` H_(2)O` .The thermal capacity of` H_(2)O` + calorimeter is 2000J/k .If the circuit is active for 15 minutes find the rise in temperature of `H_(2)O `

The 2.0 Omega resistor show in figure is dipped into a calorimeter containing water. The heat capacity of the calorimeter together with water is 2000 J K^(-1) . (a) If the circuit is active for 15 minutes, what would be the rise in the temperature of the water? (b) Suppose the 6.0 Omega resistor gets burnt. What would be the rise in the temperature of the water in the next 15 minutes? (Figure)

Compare the stuctures of H_(2)O and H_(2)O_(2) .

A 1.250 g sample of octane (C_(8)H_(18)) is burned in excess of oxygen in a bomb calorimeter. The temperature of calorimeter rises from 294.05 K to 300.78 K . If heat capacity of the calorimeter is 8.93 kJ K^(-1) , find the heat transferred to calorimeter.

Arrange the following gases in order of their critical temperature. NH_(3),H_(2)O,CO_(2),O_(2)

Compare the chemical properties of H_(2)O and H_(2)O_(2) .

Two closed vessels A,B are at the same temperature T and contain gases which obey Maxwellian distribution of velocities. Vessel A contains O_(2) , and B contain mixture of H_(2) and O_(2) . If the average speed of the O_(2) molecule in vessel A is V_(1) , then average speed of H_(2) in container B is

For the process, H_(2)O(l) to H_(2)O(g)

Balance the chemical equation: H_(2) O _(2) to H _(2)O

At 25^(@)C , buring 0.2 "mole" H_(2) with 0.1 mole O_(2) to produce H_(2)O(l) in a bomb calorimeter (constant volume) raises the temperature of the apperaturs 0.88^(@)C . When 0.01mol toulene is burned in this calorimeter, the temperature is raised by 0.615^(@)C . Calculate DeltaH^(Theta) combustion of toluene. Delta_(f)H^(Theta) H_(2)O(l) =- 286 kJ mol^(-1) .

The strength of H_(2)O_(2) is expressed in several ways like molarity, normality,% (w/V), volume strength, etc. The strength of "10 V" means 1 volume of H_(2)O_(2) on decomposition gives 10 volumes of oxygen at 1 atm and 273 K or 1 litre of H_(2)O_(2) gives 10 litre of O_(2) at 1 atm and 273 K The decomposition of H_(2)O_(2) is shown as under : H_(2)O_(2)(aq) to H_(2)O(l)+(1)/(2)O_(2)(g) H_(2)O_(2) can acts as oxidising as well as reducing agent. As oxidizing agent H_(2)O_(2) is converted into H_(2)O and as reducing agent H_(2)O_(2) is converted into O_(2) . For both cases its n-factor is 2. :. "Normality " "of" H_(2)O_(2) " solution " =2xx "molarity of" H_(2)O_(2) solution 40 g Ba(MnO_(4))_(2) (mol.mass=375) sample containing some inert impurities in acidic medium completely reacts with 125 mL of "33.6 V" of H_(2)O_(2) . What is the percentage purity of the sample ?