Molecular Physics | Thermodynamics Answers

two water tanks are connected to each other through a mercury manometer with inclined tubes as, shown in figure. if the pressure difference between the two tanks is 20 kPa . calculate a and angle teta

A drug is being delivered into a patient's arm at a rate of 10 mL min-¹. The drug is being delivered from a syringe through a 5 cm long needle with an internal diameter of 1mm. If patient's blood pressure is 110mmHg (+15.0 kPa gauge preasure, and ignoring the variation from systolic to diastolic), what must the pressure in thw syringe be? (ndrug= 8.90x10-4 Pa.s

A heating rated 100W is used to boil off 0.5kg of boiling water. the time to boil the water is ? (specific latent heat of vaporization= 2.30 × 10^6J/kg

Assume that a car decelerates at 2.0m/s2 and comes to a stop after traveling 25m.

a) Find the speed of the car at the start of the deceleration and

b) Find the time required to come to a stop.

A mass m of helium gas is in a container of constant volume V. It is initially at pressure P and absolute (Kelvin) temperature T. Additional Helium is added, bringing the total mass of helium gas to 3m. After this addition, the temperature is found to be 2T. What is the final gas pressure?

The expansion tank of a house hold hot water heating system is open to the

atmosphere and is 10 m above a pressure gage attached to the furnace. What is

the gauge pressure at the furnace, in pascals? In atmosphere?

500.g of brass (c=.0920 cal/g°C) at 200.°C and 300.g of steel (c=.115 cal/g°C) at 150.°C are added to 900.g of water (c=1 cal/g°C) in a 150.g Aluminum pan (c=.220 cal/g°C), both of which are at 20.0°C. Find the common equilibrium temperature.

An ambulance driving 20.0 m/s emits a sound wave with a frequency of 500 Hz. As it drives away from a hospital, which of the following is the only possible frequency heard by the medical staff who are standing at the entrance? 

In the interval 0°C to 660°C plantinum resistance thermometer is used for interpolating temperature on internation scale. If the variation of resistance with temperature is given by R1=R°[1+at+bt2],find the value of a,b given R°=10π,R100=13.948π and R444.6=24.817π

how much heat is given out when 50g of steam at 100°C cool to water at 28°C?