MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Introduction

2 litre water...

Question

2 litre water at 27 ^°C is heated by a 1kW heater in an open container . On an average heat is lost to surrounding at the rate 160 J/s. The time required for the temperature to reach 77 ^°C is

Open in App

Solution

Suggest Corrections

thumbs-up

83

Similar questions

Q. Two litre of water at initialled temperature of

27^{o}

C is heated by a heater of power

1

kW. If the lid of kettle is opened, then heat is lost at the constant rate of

160

J/s. Find the time required to raise the temperature of water to

77^{o}

C with the lid open (specific heat of water

4.2

Q. Two litre of water at inital temperature of

27^{o} C

is heated by a heater of power

1 k W

. If the lid of kettle is opened, then heat is lost at the constant rate of

160 J / s

. Find, the time required to raise the temperature of water at

77^{o} C

with the lid open (specific of water

4.2 k J / k g

)

Q. Two litre water at initial temperature of

27^{o} C

is heated by a heater of power

1

k W

. If the lid of kettle is opened, then heat is lost at the constant rate of

160

J / s

. Find the time required to raise the temperature of water to

77^{o} C

with the lid open :

(Specific heat of water

4.2

k J

k g

)

Q. A kettle with 2 litre water at 27

^{\circ}

is heated by operating coil heater of power 1 kW. The heat is lost to the atmosphere at constant rate 160

\frac{J}{s}

, when its lid is open. In how much time will water heated to 77

^{\circ}

with the lid open? (specific heat of water = 4.2

k J / k g^{o} C

Q. Two litres of water at initial temperature of

27^{\circ} C

is heated by a heater of power

1 kW

in a kettle. If the lid of the kettle is open, then heat energy is lost at a constant rate of

160 J/s

. The time in which the temperature will rise from

27^{\circ} C

77^{\circ} C

is (specific heat of water

= 4.2 kJ/kg

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Introduction

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon