Question

Asked Dec 2, 2019

87 views

How much energy needs to be added in the form of heat to turn a 50 kg block of ice at -20 deg C into steam at 135 deg C?

Lf=333 kJ/kg

Lv=2256 kJ/kg Cice=2.108 kJ/KgdegC Cwater=4.187 kJ/kgdegC Csteam=1.996kJ/kgdegC

Step 1

Energy needed to change the temperature of ice from -20 deg C to 0 deg C is

Step 2

Energy needed to convert 50 kg of ice into water at 0 deg C is

Step 3

Energy needed to change temperature of w...

Tagged in

Q: For Problem 8.37, how do I find <1/r> within the integral? I think that the exponent function ...

A: The radial wave function of 1s electron in hydrogen atom is.

Q: please help, i had the math mechanical engineer email expert help but they said that this problem is...

A: (a) When mass of the animal is large, the force is large. When the air density is higher, the air dr...

Q: Describe what arrangement of two flat square coils (with respect to one another) would result in the...

A: (a) For greatest mutual inductance the flat squares must be placed parallel and current in both coi...

Q: A child in a boat throws a 5.10-kg package out horizontally with a speed of 10.0 m/s. The mass of th...

A: Click to see the answer

Q: Please answer a) and b) parts

A: (a) Consider an ideal dipole separated by distance 2l in the external electric field E.

Q: You are having a family holiday dinner with your extended family: grandparents, aunts, uncles, cousi...

A: a)the sun is around 3.72*10^29 gallon and hence the total energy is the size times the energy per ga...

Q: 9) The red light from a He-Ne laser has a wavelength of 632.8 nm. Calculate the a) frequency, b) wav...

A: a) the frequency of laser beam is,

Q: In a reference frame where a Δ+ particle is at rest, it decays into a proton and a high-energy photo...

A: Let the momentum of the delta particle be denoted as Pd , the momentum of photon be denoted as, Pγ a...

Q: 1. A steady current I flows down a long cylindrical wire of radius a. Find the magnetic freld, both ...

A: (a) Let the radius of amperian loop be r. For r < a, the magnetic field is zero. Outside the loop...