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It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.
The cost of a solar PV module make up the largest part of the total investment costs. As per the recent analysis of Solar Power Generation Costs in Japan 2021, module unit prices fell sharply. In 2018, the average price was close to 60,000 yen/kW, but by 2021 it is estimated at 30,000 yen/kW, so cost is reduced by almost half.
The specific heat of the human body calculated from the measured values of individual tissues is 2.98 kJ · kg−1 · °C−1. This is 17% lower than the earlier wider used one based on non measured values of 3.47 kJ · kg−1· °C−1.
From 1967 to 1975, the government pegged the Nepalese rupee against the Indian rupee, the US dollar and gold, starting at रु1.35 = ₹1, रु10.125 = US$1 and रु1 = 0.08777g gold. By the time the gold peg was removed in 1978, the exchange rate was रु1.39075 = ₹1, रु12.50 = $1 and रु1 = 0.0808408g gold.
The following table shows a range of estimates of the levelized costs of gray, blue, and green hydrogen, expressed in terms of US$ per kg of H 2 (where data provided in other currencies or units, the average exchange rate to US dollars in the given year are used, and 1 kg of H 2 is assumed to have a calorific value of 33.3kWh).
Steam reforming or steam methane reforming (SMR) is a method for producing syngas (hydrogen and carbon monoxide) by reaction of hydrocarbons with water. Commonly, natural gas is the feedstock. The main purpose of this technology is often hydrogen production , although syngas has multiple other uses such as production of ammonia or methanol .
[1] [2] It is a number or ratio that express how much waste is mined per unit of ore. The units of a stripping ratio can vary between mine types. For example, in coal mining the stripping ratio is commonly referred to as volume/weight.
India was forced to sell dollars to the extent of close to US$35 billion in the spot markets in Financial Year 2009 due to 22% depreciation in rupee (against the dollar) in the same fiscal year 2009. In 2009, India purchased 200 tonnes of gold from the International Monetary Fund, worth US$6.7bn (€4.57bn, £4.10bn). [15]