Solution-How much energy is required to raise the

How much energy is required to raise the temperature

Assignment Help Physics

Reference no: EM132535755

A stainless steel kettle (cS = 450 J/kg/K) has a mass of 0.7 kg and contains 0.8 kg of water. Initially the kettle and water have an initial temperature of 18°C.

(a) How much energy is required to raise the temperature of the kettle (only) to 100°C?

(b) How much energy is required to raise the temperature of the water (only) to 100°C? Assume that cw = 4190 J/kg/K. Hence calculate the total energy input required to heat both the kettle and the water.

(c) If energy is delivered by an electric heating element at a rate of 1800 W (1800 J/s) estimate how long it would take for the kettle to start to boil. [Hint: note the units, Joules per sec.]

(d) The automatic cut-off is faulty. Estimate how much time would be required to evaporate all of the water - to 'boil dry'. Assume the latent heat of vaporization for water is LV = 2260 kJ/kg.

Reference no: EM132535755

Questions Cloud

What is the maximum frequency of the x-rays produced : If electrons with momentum of 1.40 x 10-23 kg•m/s collide with a metal target, what is the maximum frequency of the x-rays produced?

Reflect on the importance of agenda setting : Regardless of political affiliation, every citizen has a stake in healthcare policy decisions. Hence, it is little wonder why healthcare items become such.

Determine the change in wavelength for the photon : If a 0.010nm photon scatters 90deg after striking an electron that determine the change in wavelength for the photon.?

Should anything be removed or changed in facebook page : Visit your or another person's Facebook page. Consider the content from an interviewer's point of view. Should anything be removed or changed?

How much energy is required to raise the temperature : How much energy is required to raise the temperature of the kettle (only) to 100°C?

Identify five differences in acceptable business : Identify five differences in acceptable business or cultural norms between the U.S. and another country. how might compensate for these differences

Find the amount of energy qg absorbed : A glass thermometer has a mass of 38 g and reads 18°C. It is then fully immersed in 140 g of hot water and allowed to come to thermal equilibrium.

What will be your recommended blood glucose target range : You are tasked with developing an insulin protocol for your patient. Discuss some of the key components you would include. What will be your recommended blood.

Find the electric field in all contexts : A) A spherical Gaussian surface surrounds a point charge q. Describe what happens to the total flux through the surface if

User Account

All Pages

How much energy is required to raise the temperature

Reference no: EM132535755

Reference no: EM132535755

Questions Cloud

Reviews

Write a Review

Physics Questions & Answers

Find the magnitude of the resulting magnetic field

Find the equivalent resistance

What is the electric field at the location

What is the maximum displacement of the bridge deck

What is the magnitude of the current in the wire

Blackbody

Gravity conveyor

Calculate the dc voltage

Quadrupole moments in the shell model

Determine the tension in each string

Introductory mechanics: dynamics

Evaluate maximum altitude

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT