Calculate the molar heat of vaporization of liqiud nitrogen
60.0g liquid nitrogen(boiling point -196 celcius) is poured in a styrofoam cup containing 200g of water at 55.3 Celcius. Calculate the molar heat of vaporization of liqiud nitrogen if the final temperature of water is 41 Celcius.
Expected delivery within 24 Hours
A 130 kg mail bag hangs by a vertical rope 3.2 m long. A postal worker then displaces the bag to a position 2.2 m sideways from its original position, always keeping the rope taut. What horizontal force is necessary to hold the bag in the new posit
The service pulls a random sample of 50 reports in that sample, the average length of calls was 1.2 minutes with a standard deviation of 0.6 minutes. Construct a 90% confidence interval for the average length of a call for their entire population.
Calculate the absolute standard deviation for the value 17.26% if this value was obtained from the following data: weight of barium sulfate collected = (56.8361 +/- 0.0001g - 51.0915 +/- 0.0001g), weight of sulfate = answer x (96.034/233.391), wei
Two years ago, a random sample of 1000 homeowners showed that 435 of them had flower gardens. This year an independent random sample of 1000 homeowners showed 380 of them have flower gardens. Test to see if the proportion of homeowners who have fl
An electron starts from rest at point A and has a speed of 5 106 m/s at poduring this motion. Determine the electric potential difference VA - VB.
If the pressure just downstream from the valve is 138 kPa, what is the temperature? Assume for nitrogen that P V / T is constant, CV = (5/2) R, and CP = (7/2) R.
What is the magnitude and sign of the molar heat of vaporization of butane? Explain your reasoning using Hess's Law. is your sign for the heat of vaporization realistic? Explain.
The stirrer is used to stir the mixture gently until it reaches its final equilibrium temperature of 32°C. Calculate the mass of the aluminum cup.
1959389
Questions Asked
3,689
Active Tutors
1412006
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: Which statement concerning feedback inhibition is false? Choose one: A. Feedback inhibition is difficult to reverse.
Question: Which explanation describes where fluids of the respiratory tract originate?
Question: What is not true about protists? Need Assignment Help? Group of answer choices
Most primates have good color vision. According to the video, color vision is particularly important to howler monkeys (genus: Alouatta) because
A wildlife conservation organization introduced a program to protect an endangered bird species by restricting human activity in certain areas
Discuss how agonal changes can affect the postmortem condition of the body. State the order of decomposition of body compounds
Problem 1: What are three characteristics of fungi? Problem 2: What is hyphae and mycelium? Problem 3: What are the characteristics of division Ascomycota?