You are studying the strength of transparent aluminum tanks to bring some blue whales from past earth to future earth with Scotty. A diaphragm pump generates negative pressure in a chamber; air is pulled out of the chamber creating an atmosphere at very low pressure. If the chamber was originally at 0.80 atm with 28.00 moles of carbon dioxide in the chamber, how many moles remain if the final pressure is 0.027atm? Assume constant temperature and volume

The recommended daily caloric intake is 2000 calories (8,400,000J). This is because this is the same value for how much the average body loses to heat and work in a typical day (your change in energy is zero because you take in the same amount of energy you lose).  A) If you lose a total of 8,400,000J (Qout+W=total lost), but consume 1200 calories of food (5,000,000J), what would your change in energy be? B) Assuming your change in energy is negative (hint-it should be), where does your body get the extra energy to maintain it's temperature?

Experiment 1. The student measures the volume of the gas in the cylinder, places a known mass mon top of the piston, and then increases the temperature of the gas at constant pressure to 273C. Experiment 2. After the gas is allowed to cool back to 0C at 1 atm pressure, the student locks the piston in place, and then increases the temperature of the gas to 273C. Experiment 3. After Experiment 2 is completed, the student unlocks the piston, and a computer-controlled heat source maintains the temperature at a constant 273C.   After Experiment 2, how do the pressure and volume change (increase/decrease/remain the same)? After Experiment 3?

Atmospheric pressure on Earth at its surface is 101 KPa (101 kilopascals or 101,000 N/m2). Which of these statements is true?     If we pump out the gas in a closed container leaving only 1 billionth of the original gas there will still be more than 1010 (10 billion) atoms per cm3 in the container.     If we pump out the gas in a closed container leaving only 1 billionth of the original gas there will be fewer than 100 atoms per m3 in the container.     When we reduce the pressure in the container while keeping the temperature constant, the number of atoms per m3 must stay constant.     At 1 atmosphere, the number of atoms/m3 in air at room temperature is about 109, one billion atoms.

The outer wall of a building is constructed from concrete blocks. If the wall is 5m long at 20 deg C, how much longer is the wall on a hot day (40 deg C)? how much shorter is it on a cold day (5 deg C)?

70 J of work are done on the gas in the process shown in (Figure 1). Figure p (kPa) 300 200 100- Screenshot f i 0 V₁ 2V₁ 3V₁ 1 of 1 V Part A What is V₁ in cm³? Express your answer in cubic centimeters. ► View Available Hint(s) V₁ = Submit VT ΑΣΦ Provide Feedback B] ? cm³

(a) For the astronauts in the International Space Station, how does their mass and weight compare to what they were when they were on the surface of the Earth? Why? (b) What is temperature? What is heat? (c) How does the 0th Law of Thermodynamics dispute the caloric fluid model of heat in terms of when an object reaches thermal equilibrium?

Nuclear scientists have determined that a fourth state of matter exists: plasma. The state of plasma is reached when matter acquires a temperature so high that some of the molecules and atoms are broken down into ions and electrons. Stellar and interstellar matter mostly occur as forms of plasma. On Earth, plasma exists in the ionosphere, in flames, and in chemical and nuclear explosions. Matter in a controlled thermonuclear reactor also exists in a plasma state. Plasma is most like a gas. However, it differs from un-ionized gas in that it is a good conductor of electricity and heat. Scientists hope to understand the occurrence of plasma in nature and to harness it as an inexpensive energy source. 26. Based on the passage, how can the cost of developing thermonuclear power with plasma be defended? A. It is applicable to all technologies. B. A plasma power source can be used without special equipment. C. It can provide an inexpensive power source. bagga bniy D. It is almost perfected…