![]() ![]() We connect the capacitor to power supply, charge it to a potential difference VO 5 kV, and disconnect the power supply. What is the rate, in watts, at which you radiate energy? (For the purposes of this problem, you may assume you are spherical with a mass of 70 kg and density equal to that of water) A parallel plate capacitor is created by placing two large square conducting plates of length and width 0.1m facing each other, separated by a 1 cm gap with vaccum between the plates. (a) How far does she travel in the next 16.0 s? (b) What is her final velocity? Assume you are a perfect blackbody at a temperature of T = 310 K. (a) What is its (constant) acceleration? (b) How far does it travel in that time? -At the end of a race a runner decelerates from a velocity of 9.00 m/s at a rate of 0.400 m/s2. The same capacitor stores energy u2 when it holds charge 16 Q what is the ratio between u2/u1 the answer is 256 why ? A powerful motorcycle can accelerate from rest to 27.8 m/s (62 mi/h) in only 2.90 s. a capacitor stores energy u1 when it holds charge Q. Solve for x: -3x +3 < 6 Silver nitrate and calcium chloride react to form calcium nitrate and silver chloride. Hey Guys, Can Someone Help Me With This Math Question?… Solve For X 2x + 9 = 35ġ57.5 How do i solve this inequality and what is the answer? ?_ skills enable a manager to solve? problems, formulate? processes, and understand the relationship between? ideas, concepts,? patterns, and symbols. ![]() įind out more information about ionization here: Thus, the correct Answer is: i = 1.12 and percent ionization is 12%. Value of alpha is 0.12 means the percent ionization of HF in the given solution is 12%. Let's plug in the values in the formula and calculate the value of alpha. The equation for the ionization of HF is:įrom above equation, the value of n is 2 as two ions are formed. Where alpha stands for degree of ionization and n is the number of ions formed from one formula unit of the substance. Van't hoff factor and degree of ionization are related to each other as: Let's plug in the values in the formula and calculate the value of i. Pure water freezes at zero degree C and the freezing point of the solution is given as -0.104 degree C. Where, i stands for Van't hoff factor, m stands for molality of solution and kf stands for molal freezing point constant for the solvent. The formula used for depression in freezing point is written as: Since the mass of solvent is just 1.00 kg, the molality of the solution will be 0.0500m. Molality of solution is moles of solute divided by the kg of solvent. None of the above are true.Ġ.0500 moles of HF are dissolved in 1.00 kg of water. Since the two metals have the same mass, but the specific heat capacity of gold is much smaller than that of iron, the final temperature of the two metals will be closer to 298 K than to 498 K. Since the two metals have the same mass, the thermal energy contained in the iron and gold after reaching thermal equilibrium will be the same. Since the two metals have the same mass, but the specific heat capacity of iron is much greater than that of gold, the final temperature of the two metals will be closer to 498 K than to 298 K. Since the two metals have the same mass, the final temperature of the two metals will be 398 K, exactly half way in between the two initial temperatures. If the iron has an initial temperature of 498 K and the gold has an initial temperature of 298 K, which of the following statements is TRUE of the outcome when the two metals are placed in contact with one another? Assume no heat is lost to the surroundings. Which is equal to molar mass hence the empirical formula = molecular formulaĪ piece of iron (C=0.449 J/g☌) and a piece of gold (C=0.128 J/g☌) have identical masses. Let us divide all the moles with the smallest one Therefore 0.1159 grams of water must be formed from = Ii) 18g of water is formed from 2 grams of hydrogen Therefore 0.2829g of carbon dioxide must be formed from = of carbon I) 44g of carbon dioxide is formed from 12g of carbon The carbon dioxide is obtained on combustion from an organic molecule due to reaction of carbon with oxygen and water is formed due to reaction of hydrogen with oxygen to form water.ĬO_O" align="absmiddle" class="latex-formula"> ![]()
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